Insulating material for building and analogous purposes.



J; DE LONG &1. B. D*HOMERGUE. y `INSULATING MATERIAL FOR BUILDING ANDANALOGOUS PURPOSES.

APPLCATI N FLED AUG- fi. 1912. L12 78., PatentedSep t. 7,1915.

JULIUSDE LONG, OF NEW YORK, N. Y.,

AND JOHN BAPTISTE D'HOMERGUE, OF

PITTSBURGH, PENNSYL'VANIA.

INS'ULATING- MATEEIALOR BUILDING ANI) ANALOGOUS PUBPOSES.

1,15239&

Specification of Letters Patent.

Patented Sept., t, 1915.

Application filed August 16, 1912. Serial No. ?15,483.

To all whom it may concern:

Be it known that We, JULIUs DE LoNG, a citizen of the United States,residing in the borough of Brooklyn, in the city of New York, in thecounty of Kings and State of New York,'and JOHN BAPTISTE D HOMERGUE,residing at the city of Pittsburgh, in the county of Allegheny and Stateof Pennsylvania, have invented new and useful Improvements in InsulatingMaterial for Building and Analogous Purposes, of which the following isa specification.

This invention relates to an insulating material for building andanalogous purposes, such as is generally used in the walls of buildingsas a fire retardant, and also used around electric conduits and junctionboxes to prevent accidents sometimes due to contact caused by defectivewiring. Materialsuch as the present invention has in View can also beused in partition walls to deaden sound, and further to a greatadvantage in keeping out heat, cold and moisture in all kinds ofbuilding structures.

To this end the present invention contemplates a laminated structure offire proof and Water proofsheets of material, in such a manner thatthemaximum efiectiveness of each material used in making up the saidstructure is obtained. v

With these and other` objects in View, which will more readily appear tothose skilled in the art as the description of thecase proceeds, thesame consists in the novel Construction, combination, and arrangement ofparts hereinafter more fully described, illustrated and claimed. a a

Referring tothe accompanying drawings, Figure 1 is a perspective View ofa section of the material forming the subject of this inv vention. Fig.2 is a perspective View of the water prcof covering, having one cornerthereof torn apart to show its structure. Fig. 3 is a View similar toFig. 2 but showing a much coarser fabric used on the water proofsurface.

Similar reference numerals, designate corresponding parts throughout theseveral figures of the drawings,

Referring specifically to the drawings, the numeral 1 designates a waterproof covering, which is formed of a base material 2, which may beoftough paper or some equivalent absorbent material, and which isadapted to receive a coating `of water proof material such as pitch orthe like designated by the reference numeral. 3. When the pitch isapplied, it is of course in a plastic state, and while it is this way aloosely woven fabric 4 is pressed firmly thereon, so that at the end ofthe pressing operation there is formed a Water proof covering consistingof the three elements just referred to. In Fig. 2 it will be observedthat a relatively light fabric such as gauze is impressed upon the Waterproof material, while in Fig.

'3 it will be observed a Very coarse fabric such as burlap, or the like,takes the place of the lighter one shown in Fig. 2. The purpose ofplacing this fabric in the makeup of this water proof covering is tokeep it from breaking and separating, and more than this, greatlyreinforces and strengthens the covering so that it is very'tough, andcannot be easily torn. Next to the water proof covering is placed alayer of asbestos 5, and next to this is placed a fibrous layer 6composed of hair felt and asbestos fiber closely intermingled. Thisstructure has then placed upon it a second layer of asbestos, and thenagain upon the asbestos is placed the fibrous layer above described. Theasbestos and fiber are alternately placed, one upon the other throughoutthe structure until it has r'eachd the desired thickness, and anasbestos layer is the last one to be put in place. Upon this last sheetof asbestos is placed a covering of water proof material that has been.previously described anddesig'- nated by the numeral 1. The entirestructure after being assembled is pressed together, the interior layersbeing preferably held together by any suitable binding agent, such asglue or shellac, so that a coherent laminated 'structure is formed thatmay be cut into sheets or strips that are adapted for Various uses inbuilding Construction.

This insulating material is not only moisture proof but forms anexcellent fire retardant, so good in fact, that it can be heated untilwhite hot and yet cannot be burned, although the hair of the felt wouldbecome charred and the fabric and water proof material would slowly burnoe. Where the felting material is in two layers, as is shown in thepresent construction, it is practically impossible to destroy the one atthe back from white heat appled to the other face, r

because of the efl'ective insulation afl'orded by the three layers ofasbestos with the felting and asbestos fiber between them.

From the foregoing description it is thought that the many features andadvantages of the present inventon will be readily apparent to thoseskilled in the art, and the same will be easily understood withoutfurther description.

We claim:

1. An insulating material 'of the class described including outerwaterproofed covering sheets comprsing a base, a waterproof materialappled thereto and a fabrc pressed onto said` waterproof material, innerprotective sheets, and fibrous' material arranged between said i innerprotective sheets. I

2. An insulating material of the class described comprising outer waterproof cover- JULIUS DE LONG. JOHN BAPTISTE D'HOMERGUE.

VVitnesses as to Julius De Long: CLARENCE W. FRANCIS, VIOLA EDITHHUGHES. Witnesses as to John Baptiste d Homere: ga EDWARD G. LANG, VERDAE; HENRY.

